I'm usually not that big on the whole 'natural play spaces' thing because most of them look too much like workout equipment and don't have much room for imaginative play- but this one actually looks great!
The weather is starting to get warm and it is perfect time to stay outdoors, especially for your little rascals. As an omnipotent parent, you should do something that will allow them love outdoor time. Making a fun kid’s play area in your own backyard is
Concrete water channels (designed by EarthWrights--their company has created inspiring designs from nature for children's playgrounds, allowing children to be children and use their imaginations--awesome!